Do you have a composition for ear drops clotrimazole/hydrocortisone?

The possibility exists to make a suspension (30 ml) with 1% of both medicines. Of hydrocortisone we use acetate. As a solvent, we use a solution of Hydroxyethylcellulose 500 mg in 100 cc or water and add two to three drops of Tween 80. The powder mixture is rubbed with 30 ml of this solution.